Results 71 to 80 of about 14,017,981 (247)

Comparative jet wake structure and swimming performance of salps [PDF]

open access: yes, 2010
Salps are barrel-shaped marine invertebrates that swim by jet propulsion. Morphological variations among species and life-cycle stages are accompanied by differences in swimming mode.
Madin, Laurence P., Sutherland, Kelly R.
core   +1 more source

Performance Optimization of Endoreversible Simple MCBC Coupled to Variable-temperature Reservoirs Based on NSGA-Ⅱ Algorithm

open access: yes发电技术, 2020
Based on the previously established model of an endoreversible simple modified closed Brayton cycle (MCBC) coupled to variable-temperature reservoirs, the effect of parameters such as compressor pressure ratio on cycle performance was analyzed.
Chenqi TANG   +4 more
doaj   +1 more source

Spatiotemporal dynamics of complex ecological networks: Power-law scaling and implications for conservation planning [PDF]

open access: yes, 2008
Spatial constraints on the topology of complex networks are just beginning to be appreciated, both theoretically and in concrete examples like the Internet and global air transportation network.
Christopher Wright
core   +2 more sources

Functions of ecological tourism

open access: yesServices in Russia and abroad, 2016
Ecological tourism is a rapidly growing type of tourism. The term "ecotourism" is often used by marketers to attract tourists. In modern practice the concept of ecotourism is often distorted due to either ignorance of its essence or in favor of development of tourism business.
Tatyana Butova   +2 more
openaire   +1 more source

Functional Rarity: The Ecology of Outliers [PDF]

open access: yesTrends in Ecology & Evolution, 2017
Rarity has been a central topic for conservation and evolutionary biologists aiming to determine the species characteristics that cause extinction risk. More recently, beyond the rarity of species, the rarity of functions or functional traits, called functional rarity, has gained momentum in helping to understand the impact of biodiversity decline on ...
Violle, Cyrille   +7 more
openaire   +7 more sources

The microbiota: a key regulator of health, productivity, and reproductive success in mammals

open access: yesFrontiers in Microbiology
The microbiota, intensely intertwined with mammalian physiology, significantly impacts health, productivity, and reproductive functions. The normal microbiota interacts with the host through the following key mechanisms: acting as a protective barrier ...
Ibrar Muhammad Khan   +7 more
doaj   +1 more source

Integrating modelling of biodiversity composition and ecosystem function [PDF]

open access: yes, 2015
There is increasing reliance on ecological models to improve our understanding of how ecological systems work, to project likely outcomes under alternative global change scenarios and to help develop robust management strategies.
Adler   +116 more
core   +1 more source

Ecological sustainability in rangelands : the contribution of dung beetles in secondary seed dispersal (case study: Chaharmahal and Bakhtiari province, Iran) [PDF]

open access: yes, 2016
Ecological sustainability has been recognized as one of the main aspects of sustainable development of rangelands, at which different kinds of animal including insects, make substantial contributions.
Ardali, Elham Omidezadeh   +5 more
core   +1 more source

Eco-design case-based reasoning tool: the integration of ecological quality function deployment and case-based reasoning methods for supporting sustainable product design [PDF]

open access: yes, 2018
Several methods and tools have been developed to facilitate sustainable product design, but they lack critical application of the ecological design (eco-design) process and economic costing, particularly during the conceptual design phase.
Prickett, Paul   +2 more
core   +2 more sources

Traits with ecological functions [PDF]

open access: yesAnnals of Botany, 2012
Individual plant species thrive in specific environments, some growing well across a wide area, others being restricted to survival in very narrow ecological niches. Within a niche, a species must compete for space, light and other resources with the same and other species. Many decades of work on crops has advanced our understanding of characteristics
openaire   +2 more sources

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